Machines



No. 28,161. PATENTBD MAIN, Iseo.

` I. E. GROWELL. l

MACHINERY PNN SPINNING YARNS.

UNITED sTATEs rATnNToFFIoE. l

J. E. CRO\VELL, OF CHELSEA, MASSACHUSETTS.

MACHINERY FOR SPINNING YARN.

Specification of Letters Patent No. 28,161, dated May 8, 18460.

To aZZ whom 'it may concern:

Be it known that I, J. E. CRowELL, of Chelsea, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Machinery for Drawing and Twisting Fibrous Materials; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part. of this specification, in which- Figure l is a vertical longitudinal section of a drawing and twisting machine constructed with my improvements. The section is not taken through the center of the drawing and twisting mechanism. Fig. 2 is a vertical central section of the drawing and twisting mechanism, on a larger scale. Fig. 3, is a horizontal section of the same drawn on the same scale as in Fig. 1. Fig. 4c is a vertical section of one portion of the screw threaded box which contains the drawing and twisting rollers.

Similar letters of reference, in each of the several figures indicate corresponding parts.

The nature of my invention consists, 1st, in the combination with the geared rollers and revolving flanged casing of a stationary box which has its inner circumference screw threaded, as and for the purposes hereinafter described. The advantage of placing the gear wheel outside of the casing which incloses the rollers and inside of a screw threaded box, consists in the fact that the roving or sliver when broken can never get entangled with the gearing of the rollers as is frequently the case and a source of annoyance and loss of time in the usual machines where the gearing of the rollers is not so protected and surrounded by a circumferentially screw threaded box, and a casing fianged at top and bottom.

It consists, 2nd, in the combination of the revolving draw head casing with a box made in two parts, in order that on taking olf the top of the box, the casing with the rollers and gear wheels can be got at, or removed when out of repair, while dust is eiiect-ually excluded Jfrom the roller gear wheels by having the top closed upon the box when the machine is in operation.

To enable others, skilled in the art, to make and use my invention, I will proceed to describe its construction and operation.

The sliver or roving M, passes from the feed rollers L, L, between and around rods X, (as represented-in Fig. l) onto the drawing or twisting device, entering the latter through the funnel b, passing between the drawing and twisting rollers A, A, and through tube C, onto the spool F.

The drawing and twisting rollers A, A, have their bearings in the sides B, of a casing which has a cylindric neck b, at its top and one Gr, at its bottom, both necks fitting into suitable holes in the top E, and bottom of a box D, E, surrounding and totally inclosing the casing. The neck I), has a funnel shaped hole through its center and the neck G, is also hollow for the purpose of allowing the sliver to pass through. The casing thus arranged is free to revolve inside of the box D, E, the necks b, Gr, serving as bearings. It will be observed that lthe top and bottom' plates of the casing are circular 75 while the body of the casing is oblong. The flanges thus formed, completely over and under-hang the gearing It, h, and thus protect the same from being interfered with by broken ends of yarn.

The axle a, of one roller A, extends through one side of the casing B, while the axle of the other roller extends through the opposite side of the casing. Gear wheels It, h, are attached to these axles at opposite sides and outside of the casing. The cogs ofl these gear wheels take into a screw thread g, cut into the inside of box D, on this location of the screw-thread, hangs the novelty of my invention to a very great extent.

The upper portion of the spool frame K, is to a ver great extent formed into a tube C, which ts into the hole in the neck Gr, of the casing. A pin I, projects from the bottom of neck G, into a recess J, in the frame K, so that the revolution of the frame will cause the casing to revolve with it, while the box D, remains stationary, being fastened to the main-frame of the machine.

The revolving motion is imparted by a band passing around a pulley c, attached to the lower shaft of the spool frame K. As the casing containing the rollers revolves around the vertical center line of the box D, and thus produces the necessary twisting of the sliver passing between the rollers, the latter are caused to revolve around their horizontal axes (and in directions opposite to each other) b the action of the screw thread g, upon t e gear wheels lz., 71 thus drawing the sliver while it is being twisted.

Several pairs of rollers each fitted to a separate casing and box as described, may be employed in one machine.

I do not claim broadly a screw gear in combination with two geared rollers which draw and twist the yarn, as exhibited in the patents granted to Messrs. Hazard and Peck 1856 and Messrs. Kennedy and Plummer, 1858, but- Vhat I do claim as my invention and desire to secure by Letters Patent, is@

1. The combination with the geared rollers A, and revolving flanged casing B, of a stationary box D, which has its inner circumference screw threaded and incloses the geared rollers and casing and serves for insuring the turningof the rollers Vvertically during their movement with the ing the top closed upon the box when thek machine is operated, substantially as set forth. Y f 'Y 'Y Y The above speciiication of my improvement in spinning heads signed by me this 13th day of April 1859.

J. E. CROWELL. lVitnesses:

GOODWIN Y. AT LEE, R. W. FENWICK. 

